Adaptive Control Strategies For The Production Of Thermo Mechanically Tailored Products
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Adaptive Control Strategies For The Production Of Thermo Mechanically Tailored Products
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Author : Clobes, Jörg
language : en
Publisher: kassel university press GmbH
Release Date : 2014-01-01
Adaptive Control Strategies For The Production Of Thermo Mechanically Tailored Products written by Clobes, Jörg and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-01 with Adaptive control systems categories.
Within the rapidly growing field of hot sheet metal forming and metal bulk forming the demand arises for fully three-dimensionally tailored properties at the microstructural level, nevertheless, reaching a predefined geometry with such tailored properties puts high requirements on the control mechanisms utilized in the process chain for combined heating, metal forming, and cooling processes. Therefore, the underlying control architecture needs to be freely configurable with respect to a predefined database being extendible to new geometries, microstructural distributions, and materials. The combined control of locally and temporally differential thermo-mechanical effects during the process flow needs to be based on an adaptive algorithm adjusting the process flow in real-time according to predefined parameters delivered by the aforementioned material, geometry, and microstructure property database. The interplay between measurement techniques and adaptive control processes for hot metal forming of functionally graded materials is to be investigated in order to achieve the predefined fully three-dimensional microstructure in complex geometries and optimize the process cycle time in a freely configurable control architecture being customizable to new requirements and materials, resulting in a precision manufacturing process. The emphasis within the given thesis will be on adaptive control strategies embedded within a flexible control architecture for an innovative thermo-mechanical production process embracing induction heating to predefined spatial and temporal temperature distributions, transfer, and combined metal forming as well as heat extraction processes. The flexible control architecture assures an invariant quality for the highly dynamic processes and, moreover, yields extendibility to new materials, geometries, and microstructural distributions.
Adaptive Control Strategies For The Production Of Thermo Mechanically Tailored Products
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Author : Jörg Clobes
language : en
Publisher:
Release Date : 2014
Adaptive Control Strategies For The Production Of Thermo Mechanically Tailored Products written by Jörg Clobes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with TECHNOLOGY & ENGINEERING categories.
Robust Model Predictive Control For Large Scale Manufacturing Systems Subject To Uncertainties
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Author : Jens Tonne
language : en
Publisher: kassel university press GmbH
Release Date : 2018-01-19
Robust Model Predictive Control For Large Scale Manufacturing Systems Subject To Uncertainties written by Jens Tonne and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-19 with categories.
Large scale manufacturing systems are often run with constant process parameters although continuous and abrupt disturbances influence the process. To reduce quality variations and scrap, a closed-loop control of the process variables becomes indispensable. In this thesis, a modeling and control framework for multistage manufacturing systems is developed, in which the systems are subject to abrupt faults, such as component defects, and continuous disturbances. In this context, three main topics are considered: the development of a modeling framework, the design of robust distributed controllers, and the application of both to the models of a real hot stamping line. The focus of all topics is on the control of the product properties considering the available knowledge of faults and disturbances.
Simulation Of Manufacturing Sequences Of Functionally Graded Structures
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Author : Gleim, Tobias
language : en
Publisher: kassel university press GmbH
Release Date : 2017-02-10
Simulation Of Manufacturing Sequences Of Functionally Graded Structures written by Gleim, Tobias and has been published by kassel university press GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-10 with categories.
The current paper establishes an axisymmetric model for an inductive heating process. Therein, the fully coupled MAXWELL equations, assuming a temperature dependent permeability, are combined with the non-linear heat conduction equation to yield a monolithic solution strategy. The latter is based on a consistent linearization together with a higher order finite element discretization using GALERKIN'S method in space. For the temporal discretization, the generalized Newmark-? methods, higher order RUNGE-KUTTA methods, and discontinuous and continuous GALERKIN methods are used. Furthermore, the residual error is introduced to open an alternative way to obtain a numerically efficient estimation of the time integration accuracy. Simulation results of the electric, magnetic and thermal fields are provided, together with parameter studies concerning spatial discretization, frequency dependence and penetration depth of the heating zone. Another topic analyzed is the residual error and its estimation quality regarding polynomial degree and time step size. A further aspect of this work is the investigation of the thermal fluid-structure interaction with respect to functionally graded materials. Different coupling strategies for the acceleration of the fixed-point iteration in each time step is in the foreground. Relaxation methods as well as extrapolation methods make it possible to significantly reduce the number of fixed point iterations. At the same time, an adaptive strategy with higher order RUNGE-KUTTA methods can provide a further advantage in combination with acceleration methods.
Transforming Agriculture Residues For Sustainable Development
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Author : Jaya Arora
language : en
Publisher: Springer Nature
Release Date : 2024-07-02
Transforming Agriculture Residues For Sustainable Development written by Jaya Arora and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-02 with Technology & Engineering categories.
Agricultural residues are a significant waste product of modern agriculture. These residues mainly include crop residues, industrial processing wastes, livestock wastes, and fruit and vegetable wastes and are usually left to decompose, leading to environmental degradation and health hazards. However, with the growing demand for sustainable agriculture practices, there is a need to find innovative ways to utilize these residues. Transforming Agriculture Residues for Sustainable Development: From Waste to Wealth comprehensively explores the potential of agriculture waste valorization, showcasing innovative technologies and applications that meet the challenges of converting waste materials into valuable resources. By addressing various aspects of the agricultural waste-to-wealth paradigm, this invaluable guide will be helpful for researchers, policymakers, and industry professionals seeking sustainable solutions for agricultural residue management and the transition to a more circular economy.
College Of Engineering University Of Michigan Publications
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Author : University of Michigan. College of Engineering
language : en
Publisher:
Release Date : 2012
College Of Engineering University Of Michigan Publications written by University of Michigan. College of Engineering and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Catalogs, College categories.
Also contains brochures, directories, manuals, and programs from various College of Engineering student organizations such as the Society of Women Engineers and Tau Beta Pi.
Materials For Land Air And Space Transportation
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Author : Yinquan Yu
language : en
Publisher: CRC Press
Release Date : 2024-12-31
Materials For Land Air And Space Transportation written by Yinquan Yu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-12-31 with Technology & Engineering categories.
As transportation systems for land, air, and space vehicles continue to grow increasingly sophisticated, more advanced materials are needed to support their development and commercialization. Materials for Land, Air, and Space Transportation details new materials development for these transportation applications, emphasizing physical properties, research theories, and cutting-edge processing technologies, as well as advanced high-precision inspection methodologies. • Covers materials, design, and manufacturing for lightweight vehicles, high-speed trains, fuel cell vehicles, and aerospace and aeronautical use. • Focuses on the newest material function and processing technologies, covering nanotechnology, modern additive manufacturing techniques, and physical and mechanical studies of structure-sensitive properties of materials. • Describes theoretical deduction, numerical simulation, and experimental studies of various materials. This reference will be of interest to engineers and researchers in the disciplines of materials, mechanical, and transportation engineering, and related areas.
Signal
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Author :
language : en
Publisher:
Release Date : 1994
Signal written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Armed Forces categories.
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 1991
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Mechanics, Applied categories.
Astme Technical Digest
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Author : American Society of Tool and Manufacturing Engineers
language : en
Publisher:
Release Date : 1983
Astme Technical Digest written by American Society of Tool and Manufacturing Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Industrial engineering categories.